JPH033452U - - Google Patents

Description

[Brief explanation of drawings]

The drawings relate to an embodiment of this invention; Fig. 1 is a sectional view showing the structure of the load detection section, Fig. 2 is a sectional view showing the structure of the pressure detection section, and Fig. 3 is a detailed structure of the lower part of the sprayer main body. 4 and 5 are rear and side views of the backpack power spreader. 10...Backpack power spreader, 12...Backpack frame, 2
0...Spreader main body, 30...Spray material tank (spreading agent tank), 32...Load detection section, 36...Pressure detection section, 40...Display device, 46...Pressure chamber (first
pressure chamber), 56... diaphragm (first diaphragm), 60... oil (pressure medium), 62
...Diaphragm (second diaphragm), 66
...Pressure chamber (second pressure chamber), 70...Strain gauge (strain detector).

Claims (1)

[Scope of utility model registration request] The sprayer main body 20 including the spray agent tank 30 is mounted on the backpack frame 12 and is supported by the backpack frame 12 at a plurality of locations, and the sprayer body 20 includes a spray agent tank 30 .
2 is the spreader main body 20 in the backpack frame 12;
A first diaphragm 56 which is interposed at a supporting point and each load detection section 32 bends due to the weight from the spreader main body 20, and this first diaphragm 56
a first pressure chamber 46 that is partitioned by and accommodates a pressure medium 60; one pressure detection section 36 commonly communicates with the first pressure chamber 46 of each load detection section 32; chamber 66 and this second pressure chamber 6
6 and a second diaphragm 62 that partitions the
a strain detector 70 for detecting strain in the diaphragm 62 of
and a display device 40 is disposed at a position visible to the operator and displays a value corresponding to the detected value of the strain detector 70. Detection device.